Lighting device



FIG. 1 is a front elevational view of the lighting device showing our new design;

FIG. 2 is a back elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top side perspective view thereof; and,

FIG. 8 is a bottom side perspective view thereof. 

The ornamental design for a lighting device, as shown and described. 